L-Glutamic Acid 1,5-BS(1,1-dimethylethyl) Ster Hydrochloride; L-Glutamic Acid BS(1,1-dimethylethyl) Ster Hydrochloride; Di-tert-butyl S)-2-Aminopentanedioate Hydrochloride; Di-tert-butyl L-Glutamate Hydrochloride; Di-tert-butyl Glutamate Hydrochloride; Glutamic Acid Di-tert-butyl Ster Hydrochloride; L-Glutamic Acid Di-tert-butyl Ster Hydrochloride; SC 94681